Feed device for the inking-ribbons of writing-machines.



0U" w H Z M a 0 A N .Z T m we r m M05 H a? 7 5 E PATENTED 001-15, 1906..

A. STEINER & R. REIN. FEED DEVICE FOR THE I'NKING RIBBONS OP WRITING MACHINES.

APPLICATION FILED NOV. 11, 1904.

a E w M n W 5 (a Q QM 4; Q

UNITED sTAT s arana? OFFICE.

ADOLF STEINER AND ROBERT REIN, OF BERLIN, GERMANY, ASSIGNORS TO LOUIS TE-KOGK, OF .DESSAU, GERMANY.

FEED DEVICE FOR THE lNKlNG-RIBBONS OF WRITING-MACHINES.

To all 1071 0711, it may concern:

Be it known that we, ADOLF STEINER, engineer, and ROBERT RElN, mechanical engineer, residing at Berlin, in the German Einpire, have invented certain new and useful Improvements Relating to Feed Devices for the lnking Ribbon oi iVritingMachines, of which the following is a specification.

This invention has for its object means for feeding the inking-ribbon in writing-machines in which the two vertical spindles carrying the inking-ribbon spools are each provided with a ratchet-wheel, with which engage pawls rocking in horizontal planes, while the inking-ribbon spindles rotating in horizontal planes feed the inkingribbo.n lying in a vertical plane. Further, in the machines of the kind ihere under consideration by the dis-' placement of an adjustable bar the ratchetwheels are thrown into or out of gear by means of pawl mechanisms which are alternately oppositelyset, this displaceable part being arranged between the rocking lever and the ratchet-wheels. In accordance with this invention our improvement consists in the fact that the inking-ribbon s ools are arranged separately from the a justing-bar and that the two pillars carrying the inking-ribbon spools are independent of the adjilsting-bar. The operatlng means are provided with operatingpawls rocking upon the spindle of the ratchet-Wheels, by which means, as compared with the known arrangement in which oper atin levers or pawls rocking in a plane tangential t0 the ratchet-wheels are em loyed, a more reliable feed is obtained. As in this novel arrangement the pillars are not displaceably arranged they are necessarily stronger and more rigid, so that the ribbonspools are better supported. The adjustingbar, which. alone displaced in this case, is more readily displaeeable, as it is not Weighted by the pillars. The operatinglevers rocking in a vertical plane act upon a disk rocking around the spindle of the inking-ribbon spools, which disk :arries the. operatin'g-pawls, and the positive reversal of the operating mechanism is e'll'ected by disks which are rotatable around the spindle and are connected with the commonoperatingslide.

Specification of Letters Patent.

Application filed November 11, 1904. Serial No. 232,385.

Patented Oct. 16, 1906.

The novel inking-ribbon-operating device is illustrated in the accompanying drawings by way of example.

Figure 1 shows the adjusting-bar with the two operating devices in plan. Fig. 2 represents an operating device in front elevation and in section. mechanism for the operating device in side elevation, parts bein in section; and Fig. 4 represents a sectionaT detail on the line A A of Fig. 3 as viewed in the direction indicated by the arrow :13. Fig. 5 is a plan viewof the adjusting-bar.

The two operating devices are driven by means of a rocking yoke 74, which in the known manner upon the depression of a key lever is caused to rock and which may also serve for the displacement of the paperroller in the known manner. The yoke 74 1 carries the two operating-levers 80, both of which constantly rock with it, but which become operative alternately. .The two inking-ribbon spools 93 are carried by the sleeves 92, which are. passed upon pillars 95. These latter are attached to the frame of the machine by standards 99 at their lower part. Consequently the two pillars 95 95 may serve/to guide the operating-bar 100. This may advantageously be effected in such a manner, as shown in Fig. 1, that the slide 100 is arranged longitudinally displacea-ble on one of these pillars 95 with a slot 101, arranged in a lateral lug 101. The other end of the bar 100 is pivoted on a disk 104, further description of which will follow. The construction of the bar 100 is shown in Fig. 5. The two operating-pawls 102 are mounted on levers 103, which rock around the pillars 95 or around the sleeves 92 in a horizontal plane. The rocking movement of the levers 103 is produced by the operating-lever 90, previously referred to and which is connected with the yoke 74. Both. levers 1'03 constantly participate in the oscillations of the yoke 74. Only one of these levers 103 is, however, in engagement at one time, owing to the fact that by the displsu-ement of the slide 100 to one side or the other one of the two pawls 102 is maintained out of engagement with the ratoilet-wheels 94 by meansof a device hereinafter descrilml.

As shown. in Figs. '1 and 4, in addi lion to Fig. 3 shows the driving ice ing the return movement of the pawls 102;

These locking-pawls 103 must be disengaged at the same time as the pawls 102, in order that the displacement of the ribbon may take place. This c'ornnion release of the operating-paWls 102'and of the looking-pawls 103 is preferably produced by means of rotarydisks 104, which carrythe two fingers 105 and 106. The alternate engagement and disengagement of the two operatingdevices takes place in .the example here illustrated by means of the slide lsa v in such a manner that the slide at 107 and 108 acts upont'he'two disks 104-, so that these are 1 positively displaced together in the same direction. I

In the position represented in Fig' 1 the slide occupies its extreme left-hand place. In this position thefingers 105 106 have hit ed the two pawls 102 103 on the lei't hand side, while the same pawls on the right-hand side are situated in the operative position."

The inking-ribbonis then wound onto the ribbon-spool on the right hand of Fig. 1.

The reverse is the case 'wl'ien the slide is dis placed opposite to the direction indicatedby the arrow'to the other side.

T e i ce described above niay'of course rahlv in its details. The essen t v ease the inking-rib- ;quire adjustment and devices are positively .ie by means of the he: one operating device is always engaged and the other is always disengaged.

Having now particularly described and ascertained the nature of our said invention and in what. manner the same is to be performed, we declare that what we claim is 1. In a writing-machine, the combination with the machine-frame, of separated. vertical spii'idlos rigidly supported thereon, ribbon-spools rotatable about the spindles, ratchet-wheels carried by the spools, levers oscillating about the spindles, and pawls pivoted upon the levers and cooperating with the ratchet-wheels.

2. In auditing-machine, the combination with the inachined ralne, of two separated vertical spindles rigidly supported thereon, ribbon-spools rotatable about the spindles, ratchet-Wheels arriedby the spools, operating-pawls and loclring-pawls engaging the ratchetwheels and levers oscillating about the spindles and having arms extending at different angles therefrom and contacting with the pawls.

3. A feed device for inking-ribbons comprising a: "iindle, a spool rotatable about the spindle, a zltCllGt-WllGOl carried by the spool,

a pawl mounted to oscillate about said spindle, operat ing means movable about the spindle ai'i'd'eontarting with the pawl, and a memher for moving the operating means having a slot to receive the spindle.

in witness whereof we have hereunto signed our names, this 25th day of October, 1904, iirthe presence of two subscribing witnessee.

' ADOLF STEINER.

ROBERT REIN. t v itnesses:

Viouiinmii HAnr'r,

Harrier H Asrnii. 

